1. Depositional environment of Permian chert from North Island, New Zealand;Adachi,1986
2. Jurassic radiolarian biostratigraphy of the Irazuyama Formation (Takano Section), Shikoku, Japan;Aita;Sci. Tech. Rep. Min. Coll., Akita Univ.,1985
3. Middle Jurassic to Lower Cretaceous radiolarian biostratigraphy of Shikoku with reference to selected sections in Lombardy Basin and Sicily;Aita;Tohoku Univ. Sci. Rep. 2nd Ser. (Geol.),1987
4. Late Jurassic Radiolaria from the Kowhai Point Siltstone, Murihiku Terrane, North Island, New Zealand;Aita,1992
5. Radiolarians and calcareous nannofossils from the uppermost Jurassic and Lower Cretaceous strata of Japan and Tethyan regions;Aita;Micropaleontology,1986